THS4221DGKR

Current - Input Bias:	900nA
Base Part Number:	THS4221
Supplier Device Package:	8-VSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 15 V, ±1.35 V ~ 7.5 V
Current - Supply:	14mA
Voltage - Input Offset:	3mV
Series:	--
-3db Bandwidth:	230MHz
Gain Bandwidth Product:	120MHz
Slew Rate:	990 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Voltage Feedback
Part Status:	Active
Packaging:	Tape & Reel (TR)

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THS4221DGKR Application Field and Working PrincipleThe THS4221DGKR is a precision, low power, low voltage linear amplifier that operates as an instrumentation amplifier, an operational amplifier (op-amp), and a buffer amplifier. It is designed to reduce system power consumption while also providing accurate output signals.

Linear Amplifiers

A linear amplifier is a type of electronic device that amplifies the input signal while maintaining its linearity. The input signal will be of a low power level and the output signal will be of a much higher power level. The linear amplifier works by using the voltage gain of the amplifier, which is the difference between the input and output signal voltages, as an amplification mechanism. This type of amplifier is used in applications where accuracy and linearity are important, such as instrumentation, audio and video.

Instrumentation.

Instrumentation amplifiers, or instrumentation op-amps, are specialized amplifiers used for measuring, controlling and detecting a variety of physical and electrical signals. They are designed to have low input bias current and offset voltage, high input impedance, low output impedance, and a wide gain range, as well as fast response times, stability, and accuracy over a wide range of temperatures. The THS4221DGKR can be used as an instrumentation amplifier due to its accuracy and stability across a wide range of temperatures.

Operational Amps (Op Amps)

Operational Amplifiers (Op Amps) are electronic amplifiers designed to amplify electrical signals. These amplifiers are typically used in low-noise, high-precision signal applications. They are designed to have an extremely high input impedance and a very low output impedance. The THS4221DGKR can be used as an op-amp due to its low input offset voltage, low input bias current and wide gain range, allowing it to accurately amplify small signals.

Buffer Amplifiers.

Buffer amplifiers are amplifiers designed to transfer signals from one point of a circuit to another without any gain or loss. They are designed to have a high input impedance and a low output impedance, which enables them to isolate one part of a circuit from another, allowing signals to pass between those sections without distortion. The THS4221DGKR can be used as a buffer amplifier due to its low output impedance and its wide gain range, allowing it to accurately transfer signals between points in a circuit.

Conclusion

The THS4221DGKR is a versatile, low voltage linear amplifier designed to operate as an instrumentation amplifier, an operational amplifier, and a buffer amplifier. It has a low power consumption and is designed to be accurate and stable over a wide range of temperatures. It is capable of amplifying small signals with low input offset voltage, low input bias current and high input impedance. It can also act as a buffer amplifier due to its low output impedance and wide gain range. The THS4221DGKR is suitable for use in precision low power applications such as instrumentation, audio and video.

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